Complete with new end-of-chapter problems, this extensively updated second edition contains new chapters on optical fiber structures and propagation, optical coherent receivers, digital signal processing (DSP) equalizer algorithms, and high-order spectral DSP receivers. The text provides a comprehensive treatment of the modern aspects of coherent homodyne and self-coherent reception techniques using algorithms incorporated in DSP systems and DSP-based transmitters to overcome several linear and nonlinear transmission impairments and frequency mismatching between the local oscillator and the carrier, as well as clock recovery and cycle slips.